src/hotspot/share/gc/shared/genCollectedHeap.hpp

@@ -498,14 +498,16 @@
 
   // Override
   void check_for_non_bad_heap_word_value(HeapWord* addr,
     size_t size) PRODUCT_RETURN;
 
+#if INCLUDE_SERIALGC
   // For use by mark-sweep.  As implemented, mark-sweep-compact is global
   // in an essential way: compaction is performed across generations, by
   // iterating over spaces.
   void prepare_for_compaction();
+#endif
 
   // Perform a full collection of the generations up to and including max_generation.
   // This is the low level interface used by the public versions of
   // collect() and collect_locked(). Caller holds the Heap_lock on entry.
   void collect_locked(GCCause::Cause cause, GenerationType max_generation);